I'd had
a rotten three months, my job was going nowhere and the lease on my
flat had come to an end causing me to spend after work hours trailing
round dingy flats with greedy landlord. To top it all there was no man
in my life and I hadn't had sex in months and no matter how much I played
with myself it just wasn't the same. So, when the call came from my
sister Ruth inviting me to stay with her and her husband for a few days,
I jumped at the chance and headed north on the train.

Ruth is
a year or so older than me and her husband Andy about the same. I quite
envied her with her nice home, husband and life seemingly sorted. Andy
was good looking, early thirties and quite muscle-y without being bulky.
I'd always thought of him as more of a big brother but now I found myself
looking at him differently, taking sly peeks at his rear as he walked
about and trying to size up the bulge in his tight jeans. However he
gave no signs that he was interested in me so I thought no more about
it.

The first
night we stayed in drinking a couple of bottles of wine and laughing
about old times, until Ruth announced that as she had work in the morning,
she was going up to bed.

We all
supped up and they went to their room pointing me to the guest room.
As I settled down to sleep I heard a stifled giggle coming from their
room across the hall followed by a couple of gasps. Pretty soon I heard
the telltale creaks of a couple having sex. I tried to ignore it but
it was no use - my pussy had already started to tingle so I slipped
my hand down and began to stroke my clitoris , slowly at first but faster,
keeping time with the creaks from their room until I came, biting my
lip and pressing my thighs together. I relaxed, feeling the waves of
pleasure subside and fell into a deep sleep.

I awoke
in the early hours of the morning to hear Ruth quietly going downstairs
and setting off for work, her car starting up and then disappearing
into the distance leaving the house in complete silence. I lay there
for a minute or two thinking about last night. The tingle in my pussy
was still there but I needed more than just my fingers - I needed a
cock, and a good hard one at that! Then an idea came into my head -
Andy was just across the hall - alone.

I couldn't,
could I? I got up and walked naked to my door , then I changed my mind
and went back to the bed. I stood for what seemed like ages gathering
up my courage then decided it was now or never and crept out of my room
and across the hall.

I peeked
round the door of their room and could make out Andy's sleeping form
in the half light. Approaching the bed quietly I slipped under the duvet
and moulded myself to his back pressing my soft breasts to his warm
skin.

"I
thought you'd gone to work" he mumbled still half asleep.

I said
nothing but began to kiss the back of his neck and then down his spine,
reaching round to run my fingers through the hair on his chest and then
searching lower until I found his hardening penis. I had to stifle a
gasp as my fingers traced its length and felt it's thickness. I had
no idea Andy was so well equipped - no wonder Sis had a smile on her
face in the mornings! My pussy was now churning, the wetness starting
to coat my outer lips. It was all I could do to stop myself from leaping
on his cock there and then, but I knew I had to be patient - he still
did not know it was me.

I slipped
my head under the duvet and moved down his body until my lips touched
the head of his cock. I began to lick, slowly at first with one hand
cupping his balls but then becoming bolder as it twitched and throbbed
it's way to full hardness.

Stretching
my lips I took the head into my mouth and began to suck, swirling my
tongue about the underside causing Andy to groan and his balls to jump
in their sac. I was still totally in control, moving up and down on
the shaft, letting the head butt against the back of my throat and gently
squeezing his balls. I pride myself on knowing just when a man is about
to shoot his load but as I felt the characteristic signs, the duvet
was pulled off my and I found myself looking up into the Andy's face.

It was
a picture of shock and ecstasy, our eyes locked together for what seemed
like an eternity , his cock still in my mouth having lost none of it's
hardness, until I gave a wink and began to pump furiously with my hand.
It was all too much for him and he pumped spurt after spurt of creamy
cum into my mouth. It was delicious and I lapped it up swallowing as
much as I could until only a thin trickle escaped from the corner .
I moved up his body and lay on top of him letting my full breasts rest
on his still heaving chest and sandwiching his softening cock between
our tummies.

"Good
Morning brother -in law" I said as I planted a spunky kiss on his
lips.

"Oh
my God , Joanne what do you think your playing at? Do you know how much
trouble we could get into?

"Bit
late now" I replied " Anyway now I've had a taste I want more
- that cock of yours is pretty special, it makes sense to share it around."

By now
I could feel his cock hardening again and I sat back beginning to stroke
it, marveling at it's size . If anything it was even larger this time,
a beautiful purple head crowning a thick veined shaft. He was so hard
I had to pull it back vertical from his belly and then, taking infinite
care, I parted my outer lips and offered his prick to my pussy.

My lips
furled around the head and then he was in , surging into my dripping
pussy in one smooth motion. It had been so long I came immediately,
crying out, feeling my pussy walls contracting rhythmically, grinding
my clitoris into his pubic bone. God, he felt so big, filling me completely,
the shaft throbbing whilst the head pressed right against the entrance
to my womb. I began a steady up and down movement on his prick, lifting
off until only the head remained inside me, gripped tight by the internal
muscles, then driving myself down, feeling it surge up my pussy walls
until only his balls remained outside.

I leant
forward offering my breasts to his dry lips, shuddering as he took turns
to suck on my nipples which by this time had become hard thimbles surrounded
by a dark circle of arousal. It was all too much I cried out clamping
hard on his cock as I spasmed uncontrollably and he gave a groan, arched
his back off the bed as he began to pump wildly into me. The spurts
seemed to go on and on , each one triggering a further judder from me
until I collapsed forward, feeling the cum run out of me and onto his
balls.

I thought
that was it - I had seduced my sister's husband, using his cock for
my own release.

But as
I lay there I realised that his cock which was still in me had lost
little of it's hardness - indeed I could feel it twitching it's way
back to full stiffness. I looked in wonder to Andy's eyes and I sensed
that I was no longer in control.

"Get
on your hands and knees " he hissed and I could do nothing but
obey silently.

I knelt
there with my pouting cunt in the air whilst I felt him get behind me.
Nudging my legs apart he moved in between them, teasing me by running
his hot wet cock back and forth across my anus before guiding it lower
until it paused at the entrance to my pussy. I pushed back a bit trying
to capture it but he withdrew, then came forward again letting the smooth
head enter before pausing again.

I moaned,
the only word I could utter was " Please" and that did it.
He drove forward burying his cock to the hilt and making his swinging
balls hit my clit. I was off again , moaning and wailing as he set up
a furious pace. It was almost as if he was trying to drive his guilt
out of him and into me.

We fucked
for what seemed like an eternity before he reached round to finger my
clit triggering another orgasm in me and causing him to pump another
load of spunk into my by now well opened up pussy. We fell forward onto
the bed with him on top of me before we adjusted into the spoons position,
his now rapidly softening cock flopping out of me dragging a trail of
sticky cum. As I lay there with Andy's warm breath on the back of my
neck, I reflected on what I had done, betraying my sister and seducing
her husband. I tried to feel guilty but I couldn't and when I gently
reached round to touch his soft cock and listen to his breathing as
he settled into sleep I knew it would not be the last time.